磁力泵
在(zai)工(gong)業生產中(zhong)，化(hua)工(gong)磁力(li)泵作(zuo)為無泄(xie)漏，環保理(li)念，深(shen)受用(yong)戶廣泛使用(yong)，隨著(zhu)需(xu)求的不同(tong)，高(gao)溫(wen)情(qing)況下也是常(chang)有(you)的，對于使用(yong)設(she)備，必須具有(you)耐(nai)高(gao)溫(wen)性(xing)，那么在(zai)高(gao)溫(wen)情(qing)況下化(hua)工(gong)磁力(li)泵密封材(cai)質(zhi)有(you)哪些選(xuan)型材(cai)料(liao)呢?為了(le)合成(cheng)新材(cai)料(liao)和提升生產效(xiao)率，化(hua)工(gong)處理(li)中(zhong)的工(gong)藝溫(wen)度在(zai)持(chi)續升高(gao)，高(gao)溫(wen)工(gong)況增多。在(zai)高(gao)溫(wen)范圍內，適合的非金屬(shu)墊(dian)片(pian)材(cai)料(liao)選(xuan)擇(ze)性(xing)很小。

1、目前都有哪些密(mi)封材(cai)(cai)料可耐(nai)受工(gong)業(ye)高(gao)溫(wen)呢? 石(shi)墨(mo)在(zai)這(zhe)個(ge)溫(wen)度(du)下無(wu)法使用(yong)或者無(wu)法長期使用(yong);云(yun)母(mu)和陶瓷類產品泄(xie)漏(lou)率太(tai)大;近年來蛭石(shi)基(吸水性(xing)硅酸鋁(lv)基材(cai)(cai)質)高(gao)溫(wen)密(mi)封材(cai)(cai)料有所應用(yong)，但(dan)這(zhe)種材(cai)(cai)料不足(zu)是(shi)具有吸水性(xing)，不利于耐(nai)高(gao)溫(wen)化工(gong)磁力泵使用(yong)。革命(ming)性(xing)疏水性(xing)硅酸鎂基材(cai)(cai)質的超(chao)高(gao)溫(wen)密(mi)封材(cai)(cai)料應勢誕生，專有設計(ji)，使用(yong)環保的無(wu)溶劑工(gong)藝生產，配方*，適用(yong)于腐蝕(shi)性(xing)化學品場合。

2、常(chang)(chang)用高溫(wen)(wen)墊片性能對比，以(yi)下就常(chang)(chang)用高溫(wen)(wen)密封(feng)材(cai)料(liao)在熱失(shi)(shi)(shi)(shi)重(zhong)性，疏水性以(yi)及密封(feng)性幾個(ge)方面進行對比試(shi)驗。 密封(feng)材(cai)料(liao)暴露于高溫(wen)(wen)時(shi)，有機纖維和橡膠(jiao)膠(jiao)黏劑很容易被碳化或揮(hui)發(fa)，可(ke)以(yi)通過測(ce)試(shi)高溫(wen)(wen)下密封(feng)材(cai)料(liao)的(de)重(zhong)量損(sun)失(shi)(shi)(shi)(shi)來判(pan)斷(duan)其影響大小。不(bu)同高溫(wen)(wen)材(cai)料(liao)的(de)熱失(shi)(shi)(shi)(shi)重(zhong)分析結果(guo)。密封(feng)材(cai)料(liao)的(de)重(zhong)量損(sun)失(shi)(shi)(shi)(shi)相應表明有體(ti)積損(sun)失(shi)(shi)(shi)(shi)，體(ti)積損(sun)失(shi)(shi)(shi)(shi)對保(bao)持密封(feng)性是非常(chang)(chang)致(zhi)命的(de)。

對(dui)(dui)于(yu)(yu)墊(dian)(dian)(dian)片(pian)材(cai)(cai)料(liao)(liao)來(lai)說(shuo)，抗氧化(hua)性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)對(dui)(dui)于(yu)(yu)保持螺栓(shuan)的(de)預緊(jin)力非(fei)常(chang)重(zhong)要，一旦(dan)墊(dian)(dian)(dian)片(pian)氧化(hua)失重(zhong)，就(jiu)會(hui)造成螺栓(shuan)松弛，從而導(dao)致密(mi)(mi)封(feng)(feng)泄(xie)(xie)漏。對(dui)(dui)于(yu)(yu)長(chang)期(qi)的(de)氧化(hua)環(huan)境也(ye)不(bu)(bu)是(shi)(shi)問題。 從制造的(de)角度來(lai)說(shuo)，使用親水(shui)(shui)(shui)(shui)性(xing)(xing)(xing)(xing)(xing)材(cai)(cai)料(liao)(liao)如(ru)云(yun)母、氟化(hua)云(yun)母、蛭石、氮化(hua)硼等(deng)(deng)原材(cai)(cai)料(liao)(liao)時，其(qi)親水(shui)(shui)(shui)(shui)特性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)在(zai)混合階段能(neng)(neng)很好幫助加工(gong)(gong)，也(ye)有很好的(de)耐(nai)溫性(xing)(xing)(xing)(xing)(xing)。然而，它(ta)們在(zai)潮濕環(huan)境下(xia)會(hui)受水(shui)(shui)(shui)(shui)沾(zhan)蝕性(xing)(xing)(xing)(xing)(xing)，易導(dao)致墊(dian)(dian)(dian)片(pian)材(cai)(cai)料(liao)(liao)的(de)密(mi)(mi)封(feng)(feng)等(deng)(deng)級及完整(zheng)性(xing)(xing)(xing)(xing)(xing)的(de)下(xia)降，這(zhe)在(zai)工(gong)(gong)業工(gong)(gong)況下(xia)也(ye)是(shi)(shi)非(fei)常(chang)普遍。 硅酸鎂(mei)基墊(dian)(dian)(dian)片(pian)材(cai)(cai)料(liao)(liao)另一個顯(xian)著的(de)優點是(shi)(shi)其(qi)在(zai)水(shui)(shui)(shui)(shui)中的(de)穩定(ding)性(xing)(xing)(xing)(xing)(xing)，即疏水(shui)(shui)(shui)(shui)性(xing)(xing)(xing)(xing)(xing)。由于(yu)(yu)它(ta)高溫下(xia)不(bu)(bu)但不(bu)(bu)吸水(shui)(shui)(shui)(shui)，還(huan)會(hui)失水(shui)(shui)(shui)(shui)，因此(ci)在(zai)生成水(shui)(shui)(shui)(shui)的(de)熱循環(huan)工(gong)(gong)況下(xia)或暴露(lu)于(yu)(yu)潮濕的(de)儲存條(tiao)件下(xia)也(ye)不(bu)(bu)受影(ying)響，是(shi)(shi)穩定(ding)性(xing)(xing)(xing)(xing)(xing)很好的(de)密(mi)(mi)封(feng)(feng)材(cai)(cai)料(liao)(liao)。 THEMa-PURTM材(cai)(cai)質(zhi)(切割墊(dian)(dian)(dian)片(pian)4122-FC)和蛭石材(cai)(cai)質(zhi)實驗室測試數(shu)據對(dui)(dui)比，在(zai)苛刻(ke)的(de)熱循環(huan)條(tiao)件下(xia)THEMa-PURTM顯(xian)示出明(ming)顯(xian)的(de)低泄(xie)(xie)漏密(mi)(mi)封(feng)(feng)性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)。對(dui)(dui)于(yu)(yu)墊(dian)(dian)(dian)片(pian)產品(pin)來(lai)說(shuo)，主(zhu)要的(de)還(huan)要看墊(dian)(dian)(dian)片(pian)的(de)密(mi)(mi)封(feng)(feng)性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)。THEMa-PURTM纏(chan)繞(rao)墊(dian)(dian)(dian)片(pian)不(bu)(bu)僅(jin)僅(jin)具有長(chang)久的(de)抗氧化(hua)性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)，而且也(ye)比其(qi)他類似墊(dian)(dian)(dian)片(pian)提供了更好的(de)密(mi)(mi)封(feng)(feng)性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)。